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Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Schoenefeldia transiens

HABIT Perennial; caespitose. Culms geniculately ascending, or decumbent; 70–120 cm long. Ligule a ciliate membrane. Leaf-blades flat; 5–35 cm long; 1–5 mm wide. Leaf-blade apex attenuate; filiform.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 2–4; digitate; unilateral; 10–20 cm long. Rhachis flattened; 0.5–0.8 mm wide. Spikelet packing broadside to rhachis; crowded; regular; 2 -rowed.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets cuneate; laterally compressed; 3.5–5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pilose; obtuse.

GLUMES Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma; gaping. Lower glume lanceolate; 2–3 mm long; 0.6 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume primary vein scabrous. Lower glume lateral veins absent. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn 1–1.5 mm long. Upper glume lanceolate; 3.5–5 mm long; 1.2 length of adjacent fertile lemma; membranous; 1-keeled; 1 -veined. Upper glume primary vein scabrous. Upper glume lateral veins absent. Upper glume apex acute.

FLORETS Fertile lemma elliptic; 3–4 mm long; membranous; keeled; 3 -veined. Lemma lateral veins close to margins. Lemma surface glabrous. Lemma margins ciliate. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; flexuous; 25–40 mm long overall; limb scaberulous. Palea hyaline; 2 -veined. Apical sterile florets 1 in number; barren; lanceolate; 0.5–1 mm long. Apical sterile lemmas awned; 1 -awned. Apical sterile lemma awns 10–16 mm long.

FLOWER Anthers 3; 0.1–0.15 mm long; retained within floret.

FRUIT Caryopsis with tardily free pericarp; ellipsoid; laterally compressed. Hilum punctiform.

DISTRIBUTION Africa: northeast tropical, east tropical, southern tropical, and south.

NOTES Cynodonteae. FTEA.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.